A smart radiation device (SRD) that is a variable emittance radiator has been studied as a method of thermal control for spacecraft. The SRD consists of manganese oxide with a perovskite-type structure, and the total hemispherical emittance of the SRD changes considerably depending on temperature. Here we propose an optimal method of designing multilayer films for the SRD by using a genetic algorithm. The multilayer films reflect solar radiation and transmit far-infrared radiation to maintain variation of the infrared optical properties of the SRD.
© 2003 Optical Society of America
[Optical Society of America ]
Kazunori Shimazaki, Akira Ohnishi, and Yuji Nagasaka, "Computational design of solar reflection and far-infrared transmission films for a variable emittance device," Appl. Opt. 42, 1360-1366 (2003)